Change maker and indicator.



L. KLEINHANS. CHANGE MAKER AND IND IOATOB.

Patented Nov. 15, 1910.

14 SHEETB-SHEET 1.

L. KLEINHANS. CHANGE MAKE]! AND INDICATOR. LPPLIUATION FILED JUNE 28, 1904.

Patented Nov. 15, 1910.

L. KLEINHANS. CHANGE MAKE! AND INDICATOR.

APPLIOATIOI TILED JUNE 29, 1904. 976,129. Patented Nov. 15, 1910.

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CHANGE MAKER AND INDICATOR.

APPLICATION nun mm: as, 1904.

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L. K'LBINHANS.

CHANGE MAKER AND INDICATOR.

APPLIUATIOH FILED 111112 29, 1904. 976,1 29. Patented Nov. 15, 1910.

L. KLEINHANS.

CHANGE MAKER AND INDICATOR.

APP LIOATIOK FILED JUNE 29, 1804.

Patented Nov. 15, 1910.

14 SKEETB-BHEET 6.

L. KLEINHANS. CHANGE MAKER AND INDICATOR. APPLICATION FILED JUNE 29, 1904.

Patented Nov. 15, 1910.

14 SHEETS-SHEET I.

L. KLBINHANS. UHANGBMAKER AND INDICATOR. APPLICATION FILED JUNE 29, 1904.

976,129. Patented Nov. 15, 1910.

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L. KLEINHANS.

CHANGE MAKER AND mmomon.

APPLIOATIOH FILED JUNE 29, 1904.

Patented Nov. 15, 1910.

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L. KLEINHANS.

CHANGE MAKER AND INDICATOR.

APPLIUATIUH FILED JUNE 29, 1904. 976,129. Patented Nov. 15, 1910.

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L. KLEINHANS. CHANGE MAKER AND INDICATOR.

urmuumn FILED mm: 20, 1904.

v Patented Nov. 15, 1910.

14 SKEETSr-SHEET 11.

L. KLEINHANS.

CHANGE MAKER AND INDICATOR.

APPLICATION FILED JUNE 29, 1904.

976,129. Patented Nov. 15, 1910.

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L. KLEINHANS. CHANGE MAKER AND INDICATOR.

APPLIOATIOK FILED .TUHE 29, 1 904. 976, 1 29.

Patented Nov. 15, 1910.

L. KLEINHANS. CHANGE MAKER AND INDICATOR.

APPLICATION FILED JUNE 29, 1804. 976, 1 29. Patented Nov. 15, 1910.

14 snnms-s HEBT 14.

PATENT OFFICE.

LINDLEY KLEINHANS, OF NEW YORK, N. Y.

CHANGE MAKER. AND INDICATOR.

To all whom it may concern:

Be it known that I, LINDLEY I{LE IN HANS, a citizen of the United States, residing at New York, borough of Manhattan, and State of New York, have invented certain new and useful Improvements in Change Makers and Indicators, of which the followin is a specification.

%his invention relates generally to such machines as calculating machines, change makers, vending machines and the like, and may be specifically designated a change maker and indicator.

One of the objects of the invention is to provide means whereby, when a purchaser hands in an amount from which the cost of the article purchased is to be subtracted, an attendant may cause the machine to automatically make the correctchange.

A further object of the invention is to rovide means for indicating the change in Iiills to be extracted from the drawer.

It will be evident hereinafter that the various objects of the invention may be carried out as a whole in a single machine or that certain objects of the invention may' be performed in a machine to the exclusion of others.

These being the more general objects of the invention, the same will be described in detail, with reference to the accompanying drawings which illustrate a suitable embodiment of the invention, and in which:

Figure 1 is a front elevation of the lower portion only of a machine embodying the present invention. Fig. 2 is a vertical transverse section through the machine, on line 2-2, Fi 1, parts being omitted for the sake of c earness. Fig. 3 is a vertical transverse section of the machine viewed from the opposite side, and passing through a different plane, line 33, Fig. 1. Fig. 4-is a vertical central section of a portion of the machine, showing more particularly the devices operated from the crank shaft, and the register. Fig. 5 is a vertical transverse section on the line 55, Fi 2, parts being omitted for clearness of i1 ustration. Fig. 6 is a sectional side elevation of certain parts in detail, showing more particularly the connection between the key-actuated penny device and the fractional currency device. The section is taken on line 66, Fig. 7. Fig. 7 is a detail sectional front Specification of Letters Patent.

Application filed June 29, 1904.

Patented Nov. 15, 1910.

Serial No. 214,626.

view of certain portions of the mechanism, more particularl the localizing means or those portions 0 the mechanism which cooperate with the change distributing mechanism or remainder roducing means for producing a remain er in the form of change. Fig. 8 is a detail view of a pawl and ratchet device mounted on'the shaft used for re-setting the localizing stops. Fig. 9 is a detail sectional front elevation on the line 99, Fig. 2. Fig. 10 is an enlarged detail sectional side elevation of the keyaictuated amount-received mechanism and the key-actuated amount-purchased mechanism, together with concomitant parts of the localizing means actuated thereby, this view also showing the eliminator and compensator means, whereby one dollar is eliminated from the dollar side of the change maker, and is converted into a corresponding amount on the fractional currency side. Figs. 11 and 12 are respectively a vertical section of the means fondischarging the coins from the coin pockets, and a horizontal section thereof, on line 1212, Fig. 11. Fig. 13 is a detail sectional view, showing the means for stopping the revolution of the crank. Figs. 14 and 15 are respectively a detail sectional view and a side elevation, showing means for carrying over to the dollar side of the change maker an equivalent amount in fractional currency. Fig. 16 is an enlarged detail sectional side elevation, showing a localizing stop and a setting member. Figs. 17 and 18 are respectively plan views of a coin discharging slide and a slide of the dollar indicating mechanism. Fig. 18 is a plan view of another slide. Figs. 19 to 27 inclusive are side elevations of the ejector actuators for the slides or ejectors for discharging coin in the denomination, for instance, of pennies, nickels, dimes, quarters and half dollars, and of the actuators for the dollar slides of the dollar indicating mechanism, the shafts being shown in section. Fig. 28 is a horizontal section through parts of the machine on the line 28--28 of Fig. 5, showing the graduations of the spacers actuated by the keys. Fig. 29 is a detail front elevation of the eliminator and compensator device. Fig. 30 is a plan view of the same parts. Fi s. 31 and 32 are sectional side and front e evations in detail of the means for locking the change shafts. Fig. 33 is a detail View of parts of the resettin mechanism for the localizing stops of the c an e maker. Figs. 34 and 35 are detail views 0 localizing stops used in the register and their allied parts.

For convenience of description and facilitating comprehension, separate sections or portions of the invention will be described in sequence The subdivisions will be into key mechanism, coin discharging mechanism or remainder producing means, and dollar or paper currency indicating mechanism.

The machine comprises a suitable case a, in the lower part of which is located a drawer a, constituting a receptacle for money or for other articles to be discharged into or contained in the drawer.

Key flwckanism.The keys may be arranged as shown in Fig. 1 and comprise, among the amount-received keys, keys (1 for the fractional currency group and keys a for the dollar or paper currency group. The amount-purchased keys will be mentioned later. The amount-received keys are each provided with a push rod a and these push rods may be of the length shown or they may be of any suitable length depending upon the best results to be obtained. The push rods Figs. 2, 6 and 10 at their inner ends each act upon one of a set or series of diiferential spacers a which are provided with shoulders a and are ided in a guide plate a", suitably fixed in t e case a. The shoulders are so located that each spacer of any one group may move a different distance from any other spacer of the grou The spacers a are provided with suit-a le retracting means such as helical springs a and the push rods are also provided with retracting means such as springs a. The spacers are guided in their longitudinal movement, upon shelves or guide piece a. The said spacers or the equivalent are for the purpose of actuating or oscillating certain rock-shafts b, b 6 Figs. 7 and 28 also, there being one rock-shaft for each group of keys. The rock-shafts b and b are respectively for fractional currency and dollars or multiples thereof, while the rockshaft 1) belongs in reality to the penny group of keys which has not as yet been mentioned. The rock-shafts are supported in the bearings of suitable brackets b and are provided wit-h rock-arms b which may be connected by cross bars extending one from each shaft across the ends of the corresponding group of spacers, or there may be separate rock-arms for each spacer. In Fig. 28, the rock-arms are shown in the form of a rocking late. It is evident that either one or the ot ier may be employed and a more detailed reference thereto seems to be unnecessary.

Each rock-shaft b, b 25 is provided with a toothed segment, lettered respectively b,

Z) and b", and said segments are normally impelled toward the spacers by means of suitable helical springs 6 It will be understood that the springs a for retracting the spacers may be dispensed with if desired, as the spring-actuated rock-arms or plates on the rock-shafts will accomplish the return of the spacers. The segments I), Z) and b are employed for the urpose of imparting partial rotation to sha ts c which turn in suitable bearings of brackets c and which are provided with gear wheels 0 which intermesh with the teeth of the toothed segments, there being one gear Wheel for each segment. The gear wheels 0 are loosely mounted on and are connected with the shafts for turning them in one direc tion by means of a pawl-and-ratchet device such as 0 shown in detail in Fig. 8. These pawl-and-ratchet connections permit the shaft to remain stationary when the gear wheels are moved in opposite directions. Rigidly mounted on each shaft 0 is a gear wheel 0*, each wheel meshing with the rack of a localizing stop. There are three localizing stops 0*", c and 0 respectively, for pennies, fractional currency and dollars or paper currency. Stationary guides 0 serve for guiding the racks of the localizing stops preferably rectilinearly in their various movements and adjustments, the toothed segments 6 I), Z), serving, through the medium of the described pawl-and-ratchet connection, to move the racks in one direction. It may well be stated here that the movements of the racks and their localizing stops by means of the said toothed segments carry the same to minuend position.

For obtaining amount-purchased results, the machine is provided with a group of penny keys d, a group of fractional currency keys d and a group of dollar keys d, and these keys are provided with push rods or equivalent actuated devices d shown more clearly in Fig. 10. Corresponding with the spacers of the amount-received keys are additional spacers d for the amount-purchased keys, there being illustrated in the drawings two sets or groups of amountpurchased spacers above the amount-received spacers, while the amount-purchased spacers for the penny group of keys are located below and to one side of the two said upper groups for convenience. The oscillatory shaft and concomitant parts operated by the penny spacers have been described in connection with the amount-received keys and their devices for convenience, as the drawings indicate the penny keys alongside the amountreceived keys. The additional spacers d of the amount-purchased keys are provided with shoulders d and are guided or spaced from the guide plate d in similar fashion to the spacings of the shoulders of the amount-received spacers a The spacers (1 may be provided with retracting springs d and the push rods d with suitable retracting means such as springs (i The rock-shaft and parts actuated by the spacers of the penny keys have been described so that mention need only be made of rock-shafts 0, 6 respectively for fractional currency and dollars and multiples thereof in the amount-purchased portion of the machine. These rock-shafts are mounted in suitable stationary brackets e and are provided with rock-arms or plates 6 In the case of rocking plates each plate extends across the inner ends of its corresponding group of spacers and in the case of rockarms, there is one arm for each spacer, as will be understood. Mounted on the rockshafts e, e, respectively, are toothed segments 6, 6 Figs. 2 and 6, which segments are impelled toward the spacers by means of suitable tension springs e which hold the ends of the rock-arms or rock-plates 6 as the case may be, in contact with the actuating ends of the spacers. Loosely mounted on two of the shafts c are gear wheels 6 which mesh with the toothed segments e and 6 so that, when the segments are positively actuated by the spacers, the said shafts will be turned in one direction through the medium of a pawl-and-ratchet connection a. It will be observed that no segment for the penny group of keys corresponding with the segments 6*, c for the fractional cur rency and dollar group of keys in the amount-purchased portion of the machine is here shown, nor is any necessary, for the reason that the penny localizing stop is only moved from one extreme position to another and is not moved to an intermediate position such as is the case in subtraction, with the fractional currency or dollar group of keys, as these effectuate the movement of the corresponding localizing stops to minuend po sition and then move them, through a space corresponding with the subtrahend, to re mainder position. By stating that the penny localizing stop is moved only between two extreme positions, is meant that it is moved from zero to one or two or three or four, and is not returned by the key which so actuates it. The term localizing means, as used in the claims, is intended to indicate racks or a rack, and stops or a stop, and their equivalent, which set and determine the position of a change controller, and which are engageable with or disengageable from the change controller, and receive both the adding and subtracting movements. The localizing means in its broadest sense also includes a set of keys and translating devices whereby the separate movements of the keys are concentrated upon a single rack or its equivalent, so that variable movements may be imparted to such rack from the set of keys.

As it is desirable that each key have the same amount of inward movement each time it is operated to complete its full actuation, means are provided for preventing the return of the key unless it has been pushed in to its full extent. To accomplish this, there may be provided as shown in Figs. 2 and 10 in particular a fixed shaft f on which are mounted spring-pressed toothed dogs 7 for the amount-recelved keys, there being one do for each ush rod. Each dog is prcfer' ably provide with a hump or its equivalent f and each push rod is provided with a tooth 7 which is adapted to strike the hump as well as to engage the teeth of the dog. A spring-pressed catch 7 for each dog 7 is provided, said catch having a tendency to engage the toe or extreme end of its cor responding dog. Suitable pivoted gravity trips f are provided for the spring-pressed catches f", which trips are normally engaged with the catches, and are hung on a suitable fixed shaft f. Each push rod a is provided with a. trip-actuating nose or lug f, the function of the noses being to engage and operate the trips. The amount-purchased push rods are correspondingly compelled to be pushed in to their full limit before they can return, similar means being preferably employed, which means may comprise a fixed shaft f on which are pivoted springpressed toothed dogs f provided with humps f Each push red (X is provided with a tooth f and pivoted gravity trips f, which engage the springprcssed catches f", are mounted upon a shaft f. Trip-actuating noses or lugs f are located on the push rods.

The action of the compulsory push-in device is as follows: If a key be pushed in but partially the tooth on its push rod will engage the teeth of the corresponding toothed do which teeth act as detents to the push rod and preclude its return, but by reason of their inclinations, they permit the push rod to be pushed in to its full limit. When the push rod is pushed in as far as possible, its tooth engages with the hump of the spring-pressed dog and causes the same to snap into locking engagement with the spring-actuated catch, thus securing the dog and its teeth out of the path of movement of the tooth on the push rod so that the push rod may return immediately, under the actuation of its spring. The return of the push rod efiectuates, by the action of its lug or tooth, the movement of the tripping end of the trip, to cause its other end to press on the catch and disengage it from the dog, thus permitting the same to return to position, under the actuation of its spring. This is only one way which may be resorted to for accomplishing the desired end and it is to be understood that the invention is not limited to the construction shown.

If the amount of the purchase corresponds machine to be subsequently described but forming no part of the present invention, is

only brought into action, through the me dium of the amount-purchased keys, the push rods of these being so constructed that they do not then act on their spacers. To this end, suitable means may consist of a pivoted idler-part g at the inner end of each push rod 03 which is simply switched or pressed to one side automatically as the key is pressed in. Normally, in the line of longitudinal motion of each amount-purchased push rod, there is located a suitable deflecting arm or its equivalent 9 The normal position of this arm is indicated in dotted lines in Fig. 10, and its inclination or position is such that as the idler-part strikes the same, it is simply moved or switched to one side. Similarly acting idler-parts and deflecting devices would be arranged for each key rod. The deflecting arms 9 are arranged on an oscillatory shaft g suitably actuated from the hand-crank of the machine for the purpose of re-setting them. A spring, or springs, g connect the deflecting arms g with guide shelf d of the spacers. The tendency of this spring, or springs, is to draw the deflecting arm out of the path of the idler-part of a push rod. The deflecting arms g may be formed as separate deflecting arms or they may be formed as one plate extending across the inner ends of the ush rods, in which case, the plate is formed as a rocker with a tooth g engaged by means of a pivoted catch 9 mounted rigidly on an oscillatory shaft 9 located in suitable bearings and provided with a trip nose 9 on the amount-received push rods. It will be understood that the trip extension may be a plate or it may consist of two arms connected at their outer extremities by means of a cross-bar that can be engaged by the trip nose. The deflecting plate is removed from the path of the idlerparts, as shown in full lines, upon the actua tion of any amount-received key. The os cillating shaft g on which are arranged deflecting arms Fig. 10 extends across the push rods of tlie penny keys but the said deflecting arms are here omitted, as they are unnecessary. A penny push rod deflecting arm or portion g extends from the shaft 9 and all of the penn push rods are arranged so as to be engaged y the outer edge thereof. In the case of the idler-portions g, the de flecting arm 9 acts upwardly, but, in the case of the penny push rods, the deflecting arm 9 acts in opposite direction against pivoted idler-portions g, formed as parts of the penny push rods. The idler-portions of all the push rods are preferably formed with rule-joints, which preclude bendin of the idler-portions in two directions. aid idler portions 9 are held in alinement with the main portions of the penny push rods by means of suitable springs 9. At the outer end of each of the penny push rods, or rather, their idlerportions, are pins g", which, when their said push rods are pushed inwardly, are adapted to come in contact with a slotted inclined plate 9 the pin simply riding on the under surface of the' plate, thus bending the idler-portion downwardly so that there will be no actuation of the spacers of the penny keys. Normally, deflecting portion or arm 9 is thrown downwardly into the position shown in dotted lines in Fig. 6. In this position of the deflecting arm, the idler-portions of the penny push rods are held in the position shown in dotted lines in said figure so that as any penny push rod is pushed inwardly and the path of its idler-portion moved past the deflecting portion 9 the said idler-portion will be prevented from returning by the contact of the pin 9 with the plate 9 and it might be found that the plate 9 can be dispensed with by slightly altering the deflecting portions. In the dotted l1ne position of the idler-portions of the penny push rods the register only will be actuated. The idler portion g of the penny push rods will, under the actuation of their springs g, assume the alined position shown in full lines when the pivoted catch g has been unlocked from the tooth g by the actuation of any of the amount-received keys. This is necessary when change which includes pennies is to be delivered.

The spacers of the fractional currency group of keys, whet-her amount-received or amount-purchased, are arranged so that the localizing stops will have a corresponding position. In addition to the twenty ositions e'lfectuated thereby on the localizing stop, means are provided for eifectuating twenty positions of the same localizing stop so that this localizing stop may have forty possible positions. The localizing stop referred to is the fractional currency stop 0. To effectuate this extra spacing movement, devices shown in Figs. 10, 29 and 30 are provided, suitably consisting of a stationary bracket h, a slide-way arm 7L pivoted at 71,2 to said bracket, a spring k acting on the said arm, a controller arm 71, provided with a shoulder it and with a cam-piece or inclined finger h There is also an eliminator and compensator plate It provided with the eliminators h in the form of fingers or blades and pivots h for the plate 71.. The plate 71. is provided with a detent it and is acted upon so as to be projected forwardly by means of a suitable tension spring It. There are a number of eliminator-s it corresponding with the number of dollar spacers. A spring retracted finger h is guided in the arm A and is provided with a head It which is adapted to ride over a hinged inclined slot-ted shoe It, said shoe being formed as an extension of the spacer shelf which is also slotted and is provided, as shown, with a hole It, through which the head h is adapted to pass as hereafter described. A re-setting arm h" is formed as an extension of the arm h and is adapted to cooperate with a spring-pressed contact It mounted on the drawer a. The drawer is provided with a stop shoulder it against which the contact is pressed by its spring. See also dotted lines in Fig. 3.

The eliminator and compensator devices operate as follows :Say, $5.00 for instance, has been received: The five dollar amount-- received key is pressed against its spacer and this causes the shoulder a on the said spacer and behind which one of the eliminators h is located, as seen from Fig. 30, to rock the eliminator and compensator plate I), on its pivot and withdraw the detent 71 from engagement with the shoulder it. Immediately the eliminator and compensator plate is released the spring h" thereof presses it to one side and causes the spaces between the eliminator blades 72, to exactly register with the spacers in such way that if,

in this position of the eliminator plate, an

additional dollar key rod a be operated, its spacer will not act thereon as appears from Fig. 10. As the localizing stop of the dollar keys is arranged to space for each movement so also is the eliminator or compensator plate of such thickness that the spacer which actuates it will move the dollar localizin stop one space less than the space indicate on the depressed key which, in the example given, is the five dollar key. In this case, the localizing stop actuated will indicate four dollars instead of five. It is necessary to do this for the prupose of obtaining fractional currency, and this dollar which is eliminated upon the depression of a dollar key is compensated for and con verted, so to speak, into an equivalent in fractional currency, amounting to twenty spaces in the fractional currency portion, by reason of the release of the controller arm it from the detent h of the eliminator and compensator plate. This will enable the spring k to rock the arm in on its pivot and carry the head it on finger it up the inclined shoe h, the finger passing through its slot and through the slot in the corresponding shelf. This action distends the s ring which tends to retract the finger It.

s the head It strikes an additional or twenty space spacer It, for fractional currency, it presses this in to its full limit and this actuates the parts of the fractional currency portion of the machine which carry the corresponding localizin r stop through a distance of twenty spaces. hen the twenty space spacer It reaches its extreme limit of inward motion, the head it reaches the hole it in the spacer shelf and the sprin of the finger h immediately draws the hea through said hole, and below the shelf. The rock-arms may then be returned to their former position. This is accomplished by means of the said spring-pressed contact h which, as the drawer a is pushed in, is stopped by the shoulder h thereon and comes in contact with the re-setting arm it", thus returning the parts to their normal position. On the return movement of the controller arm 72, its inclined finger or cam piece h comes in contact with the detent 713 of the eliminator and compensator plate 71 and forces the same back against the action of its spring it", thus re-setting the eliminators in normal position as shown in Figs. 10, 29 and 30.

Suitable pawls and ratchets are provided Figs. 3 and 7 for steadying the rack operating shafts c and the ratchets may be indicated by i and the pawls by '5 These pawls and ratchets have an additional function, or rather, the pawl and ratchet for the dollar portion of the machine has an additional function, which will presently appear. It will be remembered that the five dollar key has been pushed in and that one dollar has been converted into twenty spaces in the fractional currency portion of the machine. This is to enable change in fractional currency to be made, but it is necessary that this dollar be re-converted in the dollar portion of the machine, that is to say, that suitable means be provided whereby the fractional currency shaft 0 will act on the dollar shaft 0 and cause the movement of the localizin stop thereof for a distance of one space, tius adding a dollar on the dollar side of the machine. Now, if an amount-purchased key, say a two dollar key, be pushed in, the dollar localizing stop is in position to indicate that three dollars may be extracted from the drawer. Furthermore, the parts are in position so that if change less than a dollar is desired, this may be obtained by pushing in the fractional currency key. If this be done, then the dollar which was before added on the dollar side of the machine is subtracted, because change in even dollars is not deslred. To accomplish this, means shown in Figs. 7, 14 and 15 may be provided, and the additional function of the awl and ratchet on the dollar localizing sha t will be understood. A toothed wheel 2' is fixed on the inner end of the dollar shaft 0 and a carrier disk i is fixed on the adjacent end of the fractional currency shaft. The disk i is provided with a rim in which is suitably mounted a spring retracted pin 2', having beveled ends, the inner pointed or beveled end of the pin being adapted to take between the teeth of the toothed wheel 2' while the outer end thereof is adapted to cooperate with a stationary presser 2' provided at its ends with inclines 2" and 21 respectively. The additional or twenty space spacer 12 has moved the frac tional currency shaft 0 half a revolution, carrying the spring retracted pin 2" from the position shown in dotted lines in Fig. 14c to twenty space position. The full line position shown corresponds with nineteen spaces and the dotted line position with blank. At space nineteen position the spring retracted pin engages the incline i and the action of the en aged surfaces is such that the pin is presse in between the opposite teeth, and as the disk 11 and said pin move toward the twenty space position corresponding with one dollar, the inner end of the pin by its engagement with the toothed wheel 2' carries said toothed wheel positively forward in the direction of the arrow until the beveled outer end of the pin comes in contact with the other incline '5 which permits the pin to be retracted away from the toothed wheel, the latter being carried forward to its full single space position by the additional impulse imparted thereto by the beveled tooth of the pawl i acting on the ratchet i on the dollar shaft. It will be evident that the pawl and ratchet simply completes the spaclng movement, and some such means or its equivalent are necessary, as, when the outer end of the pin is engaged with the incline, i its inner end is disengaged from the toothed wheel and cannot positively move it its full distance.

The penny push rods are, as shown in Fig. 6, provided with striker lugs j, j the lugs j being for the push rods of the one, two, three and four penny keys, and lugs j for the six, seven, eight and nine penny keys. The devices actuated" by the said lugs are for the purpose of subtracting from the amounts on the fractional currency side of the machine. There are two subtracting heads 7' and j, respectively for the push rods and their lugs and for the push rods and their lugs 7' The subtractor head 7' subtracts five cents from the fractional currency side when actuated, and the head 7' subtracts ten cents therefrom. Two spacers j, 1' respectively are actuated by the five cent and the ten cent subtractor heads. The push rods of the. penny keys act directly upon the spacers 7', f, spacers 7' being for the push rods of the one, two, three and four penny keys, and s acers 3' being for the six, seven, eight an nine penny keys. Whenever a penny push rod is actuated, five cents or ten cents is subtracted from the fractional currency portion of the machine, and pennies added corresponding to the difference between the number indicated on the key depressed and five cents, or ten cents; that is to say, when a two penny key, for instance, is pressed in, three pennies will be dropped in the manner hereinafter to be described in connection with the change making mechanism. At the same time that the two penny key is pressed in five cents are subtracted from the fractional currency portion of the machine.

Irrespective of visible results obtained by the machine, it will be useful in an understanding of the operation to know that the amount-received keys are each in reality means for carrying the localizing stops to a position indicative of minuend position, and that they would be minuend keys in case the invention is embodied in a subtracting machine pure and simple. Also, that the amount-purchased keys are subtracting keys to subtract from the result produced in the machine by the minuend keys; for example, suppose it is desired to subtract fifty from seventy-five, then the minuend keys seventy and five, or seventy-fiveif a key of the value of seventyfive be providedare pushed in, thus bringing the localizing stop 0 which is arranged to space a distance corresponding with five units at each actuation, to minuend position. The subtracting key number fifty, is then pressed which reverses the direction of motion of the localizing stop and brings the same to remainder position, the space eliminated corresponding with the subtrahend so that there are but five spaces remaining, indicative of twentyfive units. The same method of actuation of the localizing stops described for subtracting is carried out in connection with the other localizing stop 0". It is evident that the principle of the invention may be carried out by spacing the stops differently from the manner shown.

00in discharging meoham'sm.By means of the mechanism heretofore described it is possible through the medium of the coin discharging mechanism to obtain variable amounts of change, as it is simply necessary to so construct the coin discharging mechanism that parts thereof will cooperate with the localizing means. Suitable means for discharging coin are shown in Figs. 2, 3, 5, 9 and 19 to 24. The means shown comprise a movable or swing change-frame la, mounted on a pivot-shaft and under the constant tension of a spring 70 The tendency of the spring 70 is to push the frame 70 forward in the same direction as the opening movement of the drawer a As no means is shown for making change in bills, the means for indicating the bills to be extracted from the drawer will be described later and not in connection with the coin discharging mechanism, and, therefore, it will be clear that in connection with the 

